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Finding the Fourth Proportional to 72,371.10, 108,575.85 and 25,619.10

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Solution

The fourth proportional to 72,371.10, 108,575.85 and 25,619.10 is: 38,435.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,371.10 : 108,575.85 = 25,619.10 : x
  2. Step 2: Convert to fraction form
    72,371.10/108,575.85 = 25,619.10/x
  3. Step 3: Cross multiply
    72,371.10x = 108,575.85 × 25,619.10
  4. Step 4: Simplify right side
    72,371.10x = 2,781,615,558.74
  5. Step 5: Solve for x
    x = 2,781,615,558.74/72,371.10
  6. Step 6: Final answer
    x = 38,435.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.